Home / 12,112.77-18,169.56-3,228.02

Finding the Fourth Proportional to 12,112.77, 18,169.56 and 3,228.02

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Solution

The fourth proportional to 12,112.77, 18,169.56 and 3,228.02 is: 4,842.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.77 : 18,169.56 = 3,228.02 : x
  2. Step 2: Convert to fraction form
    12,112.77/18,169.56 = 3,228.02/x
  3. Step 3: Cross multiply
    12,112.77x = 18,169.56 × 3,228.02
  4. Step 4: Simplify right side
    12,112.77x = 58,651,703.07
  5. Step 5: Solve for x
    x = 58,651,703.07/12,112.77
  6. Step 6: Final answer
    x = 4,842.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.